Fred,my friend with the '59 Viking bought a pickup-truck booster M.C. Combo kit,and threw away the hydrovac parts. when he installed it,the engine didn't run nearly as smooth as it did with the original system. That was minor compared to the Major problem... The bus would Not Stop,and the pedal only had a 1/8" play,before it was Rock Solid! I Stood on the Pedal with Both Feet,and only the left front,(closest wheel to the M.C. "grabbed". Luckily,we were on level ground,with no obstacles. He just purchased a P-30,with electric assist hydroboost. and all-wheel disc brakes.-$500.00,with Brand-New Michelins!
